CN2382722Y - Delay coking heating furnace having bottom layed furnace pipe structure - Google Patents
Delay coking heating furnace having bottom layed furnace pipe structure Download PDFInfo
- Publication number
- CN2382722Y CN2382722Y CN 99214892 CN99214892U CN2382722Y CN 2382722 Y CN2382722 Y CN 2382722Y CN 99214892 CN99214892 CN 99214892 CN 99214892 U CN99214892 U CN 99214892U CN 2382722 Y CN2382722 Y CN 2382722Y
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- furnace
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- radiation chamber
- delay coking
- chamber
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Abstract
The utility model relates to a novel delay coking heating furnace having a bottom laid furnace pipe structure. The utility model belongs to the improvement for the structure of a delay coking heating furnace for processing petroleum. The overall structure of a furnace body is not changed, and a bridge wall and a radiation furnace pipe are arranged in the furnace body, which can enlarge energy and can eliminate the constraint for 'a neck' in delay coking process. The utility model is mainly composed of the furnace body, a convection chamber, a radiation chamber, the radiation furnace pipe arranged at the bottom, etc.
Description
The utility model relates to a kind of novel delay coking heating furnace that the boiler tube structure is laid in the bottom that has, and it is the structure of modification that belongs to delay coking heating furnace in the petroleum refining industry.Mainly by in body of heater, adding fire bridge and setting up the purpose that radiating furnace tube reaches capacity expansion revamping and eliminates " bottleneck " restriction in the delay coking process.It mainly is made up of body of heater, convection chamber, radiation chamber, fire bridge and bottom radiating furnace tube etc.
In the petroleum industry course of processing, the processing and utilization of vacuum residuum is ubiquitous key subjects in the world refining industry.Since delay coking process have strong to adaptability to raw material, heat conversion is high and the facility investment expense is low, is the main path of China's heavy oil lighting always.China has cover surplus the delayed coking unit 20 at present, and about 1,300 ten thousand tons (the occupying the second place of the world) of annual working ability processed the net income that residual oil per ton can obtain 100 yuan at least.Along with market to the increase of light-weight fuel oil demand and the expansion of each manufacturer's oil-refining capacity, 95 during "the 10th five-years", annual nearly 6,000,000 tons of unnecessary vacuum residuum need carry out processing treatment by existing apparatus.Because the neutron level gage is thrown after using, greatly improve in the utilized space of coking tower, and coking furnace has become " seizing by the throat " unit equipment of the whole device amount of carrying.The technological transformation of the energy of coking furnace expansion is at present mainly adopted and is utilized convection tubes as the means of radiator tube with expansion radiative transfer area and then reduction radiator tube hot strength, because the convection tubes heat transfer coefficient is little, the charging temperature of turning oil own is higher, the convection tubes effective rate of utilization is little, thereby this technological transformation mode has promptly been wasted facility investment and has been made coking recycle oil overstand in radiator tube again, increase coking precursor concentration in the mobile main body of outlet boiler tube, strengthened the coking tendency of outlet boiler tube.Therefore, how under the constant condition of process furnace overall structure, finish the processing tasks that increases newly,, be one and both urgently presented real requirement again to reduce facility investment
The purpose of this utility model provides a kind of delay coking heating furnace that the boiler tube structure is laid in the bottom that has with regard to being to avoid above-mentioned the deficiencies in the prior art part, it is by adding fire bridge and laying bottom method such as radiating furnace tube in body of heater inside, reach the purpose that improves processing power under the constant prerequisite of overall structure.Its structure mainly is by convection chamber (1), radiation chamber (3), burner (7), boiler tube and fire bridge (6) constitute, it is the top that convection chamber (1) is arranged on radiation chamber (3), horizontal several layers convection coil (2) in the convection chamber (1), then radiating furnace tube (5) is horizontally set on the furnace wall (4) of radiation chamber (3) in the radiation chamber (3), its major technology characteristics are that set fire bridge (6) is axially set along radiating furnace tube (5) in the radiation chamber (3), burner (7) then is arranged on the both sides of fire bridge (6), and is respectively arranged with bottom radiating furnace tube (8) in the bottom (10) of radiation chamber (3).
Accompanying drawing 1 is structural representation of the present utility model.
Accompanying drawing 2 is the structural representation of inclination fire pot of the present utility model.
Accompanying drawing 3 is fire pot structural representation of the present utility model.
The drawing of accompanying drawing is described as follows:
1---convection chamber 2---convection coil 3---radiation chamber 4---furnace wall
5---radiating furnace tube 6---fire bridge 7---burner 8---bottom radiating furnace tube
9---fire pot 10---radiation chamber bottom
In order to realize better above-mentioned purpose of the present utility model, designer of the present utility model Also with the height design of fire bridge (6) set in the radiation chamber (3) be should be at radiation chamber (3) highly More than 1/3rd; The bottom radiant tube (8) that radiation chamber bottom (10) is laid is designed to respectively 2～4 radiating furnace tubes that lay in burner (7) and furnace wall (4) centre; Burner (7) is then established Count into by some fire pot (9) and form, and along axially evenly the arranging of radiating furnace tube (5), and make These fire pot (9) to go out mouth-shaped rectangular, its major axis is the axial setting along radiating furnace tube (5) ; For the flame that makes burner avoids licking pipe, also the outlet with fire pot (9) is designed to passable Tilt the i.e. prolongation of the longitudinal axis of fire pot (9) and fire bridge (6) or fire bridge (6) to fire bridge (6) direction Line intersects. Make the radiant heat flux intensity along the distribution of radiant tube, that has reduced that flame licks boiler tube can The energy property, and utilized the big characteristics of coking furnace radiation chamber hyperthermia radiation calorific intensity, and make existing Coking furnace radiation chamber space is fully used. Can be used for transforming existing coking furnace, eliminate The 'bottleneck' restrictions of existing coking plant. Can reach under the constant prerequisite of outfit of equipment structure, Improve as far as possible the purpose of device disposal ability.
Below in conjunction with drawings and Examples in detail constructional feature of the present utility model is described in detail:
In actual design with in making, planner of the present utility model adds fire bridge to increase the heat flow rate per unit area of radiation chamber bottom in conventional delay coking heating furnace inner bottom part mid-way, has reduced the phase mutual interference between two row's flames; Two at fire bridge are provided with burner, and radiating furnace tube is laid in the bottom between burner and furnace wall, both enlarged heat transfer area, reduced the process furnace heat flow rate per unit area, made full use of the hyperthermia radiation heat of radiation chamber flame again, thereby can reach under the constant prerequisite of outfit of equipment structure, improve the purpose of device processing power as far as possible; Simultaneously, also the structure of conventional fire pot is transformed, be about to conventional circular fire pot and transform the rectangle fire pot as, thereby can make the radiation chamber structure mate mutually, make radiant heat flux intensity more even along the boiler tube length direction; Also the fire pot in the burner can be designed to tilt as required, even the Y fire bridge direction of fire pot tilts, mainly be in order to reduce the lick pipe of flame to radiating furnace tube, avoid the boiler tube local superheating, and then cause medium coking in the boiler tube pipe, reduce simultaneously between under-stream period bottom radiant-type furnace pipe fracture.
By enforcement of the present utility model, can make 400,000 tons of/year delay coking stoves of refinery, under the constant condition of overall structure, treatment capacity reaches 600,000 tons/year, and the annual profits that obtain 2,000 ten thousand yuan have good society and economic benefit more.
Claims (5)
1. have the bottom and lay the delay coking heating furnace of boiler tube structure, it mainly is by convection chamber (1), radiation chamber (3), burner (7), boiler tube and fire bridge (6) constitute, it is the top that convection chamber (1) is arranged on radiation chamber (3), horizontal several layers convection coil (2) in the convection chamber (1), then radiating furnace tube (5) is horizontally set on the furnace wall (4) of radiation chamber (3) in the radiation chamber (3), it is characterized in that set fire bridge (6) in the radiation chamber (3) is axially set along radiating furnace tube (5), burner (7) then is arranged on the both sides of fire bridge (6), and is respectively arranged with bottom radiating furnace tube (8) in the bottom (10) of radiation chamber (3).
2. according to claim 1 have the bottom and lay the delay coking heating furnace of boiler tube structure, it is characterized in that the height of fire bridge (6) set in the radiation chamber (3) should be more than 1/3rd of radiation chamber (3) height.
3. according to claim 1 have the bottom and lay the delay coking heating furnace of boiler tube structure, it is characterized in that the bottom radiator tube (8) that radiation chamber bottom (10) is laid is to lay 2～4 radiating furnace tubes at burner (7) and furnace wall (4) intermediary respectively.
4. according to claim 1 have the bottom and lay the delay coking heating furnace of boiler tube structure, it is characterized in that burner (7) is made up of some fire pot (9), and axially evenly being provided with along radiating furnace tube (5), the outlet shape of these fire pot (9) is rectangular, and its major axis is along the axial setting of radiating furnace tube (5).
5. according to claim 1 have the bottom and lay the delay coking heating furnace of boiler tube structure, it is characterized in that the outlet of fire pot (9) can be tilted to fire bridge (6) direction, and promptly the extended line of the longitudinal axis of fire pot (9) and fire bridge (6) or fire bridge (6) is crossing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99214892 CN2382722Y (en) | 1999-07-08 | 1999-07-08 | Delay coking heating furnace having bottom layed furnace pipe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99214892 CN2382722Y (en) | 1999-07-08 | 1999-07-08 | Delay coking heating furnace having bottom layed furnace pipe structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2382722Y true CN2382722Y (en) | 2000-06-14 |
Family
ID=34006983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99214892 Expired - Fee Related CN2382722Y (en) | 1999-07-08 | 1999-07-08 | Delay coking heating furnace having bottom layed furnace pipe structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2382722Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982524A (en) * | 2010-11-23 | 2011-03-02 | 中国石油化工股份有限公司 | Delayed coking furnace |
| CN102331178A (en) * | 2011-09-17 | 2012-01-25 | 大庆华凯石油化工设计工程有限公司 | Box-type heating furnace provided with radiation chamber with in-built radiation wall |
| CN102331177A (en) * | 2011-09-17 | 2012-01-25 | 大庆华凯石油化工设计工程有限公司 | Square-box heating furnace with built-in coiled radiant walls in radiation chamber |
| CN102933692A (en) * | 2010-04-15 | 2013-02-13 | 鲁姆斯科技公司 | Delayed coking process |
| CN108317856A (en) * | 2018-04-26 | 2018-07-24 | 中国石油大学(华东) | Standpipe square chest stove |
| CN108458477A (en) * | 2018-04-26 | 2018-08-28 | 中国石油大学(华东) | Cylinder type tubular heater |
-
1999
- 1999-07-08 CN CN 99214892 patent/CN2382722Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102933692A (en) * | 2010-04-15 | 2013-02-13 | 鲁姆斯科技公司 | Delayed coking process |
| CN102933692B (en) * | 2010-04-15 | 2015-08-05 | 鲁姆斯科技公司 | Delay coking process |
| CN105038830A (en) * | 2010-04-15 | 2015-11-11 | 鲁姆斯科技公司 | Delayed coking process |
| CN101982524A (en) * | 2010-11-23 | 2011-03-02 | 中国石油化工股份有限公司 | Delayed coking furnace |
| CN101982524B (en) * | 2010-11-23 | 2013-05-01 | 中国石油化工股份有限公司 | Delayed coking furnace |
| CN102331178A (en) * | 2011-09-17 | 2012-01-25 | 大庆华凯石油化工设计工程有限公司 | Box-type heating furnace provided with radiation chamber with in-built radiation wall |
| CN102331177A (en) * | 2011-09-17 | 2012-01-25 | 大庆华凯石油化工设计工程有限公司 | Square-box heating furnace with built-in coiled radiant walls in radiation chamber |
| CN108317856A (en) * | 2018-04-26 | 2018-07-24 | 中国石油大学(华东) | Standpipe square chest stove |
| CN108458477A (en) * | 2018-04-26 | 2018-08-28 | 中国石油大学(华东) | Cylinder type tubular heater |
| CN108317856B (en) * | 2018-04-26 | 2023-10-24 | 中国石油化工股份有限公司 | Vertical pipe square box furnace |
| CN108458477B (en) * | 2018-04-26 | 2024-02-06 | 中国石油化工股份有限公司 | Cylindrical tube type heating furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |